[HELP] Form submitted even when empty.

Code:

public function register($enc_password){

    $user_name = convert_accented_characters($this->input->post('screenNameInput'));

    $user_name_slug = url_title($user_name);

    $data = array();

    $contact_data = array();

    $data['user_group_id'] = $this->input->post('userGroupInput');

    $data['screen_name'] = $this->input->post('screenNameInput');

    $data['email'] = $this->input->post('email');

    $data['password'] = $enc_password;

    $data['slug'] = $user_name_slug;

    $data['city_id'] = $this->input->post('cityInput');

    $data['register_status'] = 1;

    $data['unique_id'] = random_string('numeric', 6);

    if ( $this->input->post('userGroupInput') == 1 && $this->input->post('websiteInput') ) {

      $data['website'] = $this->input->post('websiteInput');

    }



    $user_created = $this->db->insert('users', $data);

    if ($user_created) {

      $user_id = $this->db->insert_id();



      $contact_data['primary_num'] = $this->input->post('phoneInput');

      $contact_data['info_group_name'] = $this->input->post('screenNameInput');

      $contact_data['city'] = $this->input->post('cityInput');

      $contact_data['to_user_id'] = $user_id;



      $registered = $this->db->insert('contact_info', $contact_data);

      if ($registered) {

        return true;

      } else {

        return false;

      }

    } else {

      return false;

    }



  }

Code:

 public function create_user(){

    if (count($_POST) > 0 && !$this->input->post('name')) {

      $pass = $this->input->post('name');

      $email = trim($this->input->post('email'));

      $email_exist = $this->user_model->check_email_exist($email);

      if ($email_exist) {

        $result['status'] = 'failed';

        $result['message'] = '<div class="w-100 text-center bg-danger text-white py-1 mb-2">' . $this->lang->line('error_email_exist') . '</div>';

      } else {

        //Pass enc

        $enc_password = md5($this->input->post('passInput'));

        $register = $this->user_model->register($enc_password);

        if ($register) {

          $result['status'] = 'success';

        } else {

          $result['status'] = 'failed';

          $result['message'] = 'Please fulfil the empty inputs';

        }

      }

    } else {

      $result['status'] = 'failed';

      $result['message'] = '<div class="w-100 text-center bg-danger text-white py-1 mb-2">Something went wrong! Please check your form inputs.</div>';

    }

    echo json_encode($result);

  }